this company has been calling my family members looking for me.saying they are a outsource legal department but when i call back they dont answer.

This caller or caller's company has called my cell on and off for over a year for a person (not me) with legal issues. I've told them repeatedly it's not the right number. When I fussed at the guy for calling me again (as I requested they put a note in the file stating it was the wrong number and to not call again), he went off and yelled at me as if I was in the wrong...how do I report this complaint and how do I make the calls stop???